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http://dx.doi.org/10.11003/JPNT.2019.8.2.87

Performance Analysis of Long Baseline Relative Positioning using Dual-frequency GPS/BDS Measurements  

Choi, Byung-Kyu (Space Science Division, Korea Astronomy and Space Science Institute)
Yoon, Ha Su (Space Science Division, Korea Astronomy and Space Science Institute)
Lee, Sang Jeong (Department of Electronics Engineering, Chungnam National University)
Publication Information
Journal of Positioning, Navigation, and Timing / v.8, no.2, 2019 , pp. 87-94 More about this Journal
Abstract
The Global Navigation Satellite System (GNSS) Real-Time Kinematic (RTK) positioning has been widely used in geodesy, surveying, and navigation fields. RTK can benefit enormously from the integration of multi-GNSS. In this study, we develop a GPS/BeiDou Navigation Satellite System (BDS) RTK integration algorithm for long baselines ranging from 128 km to 335 km in South Korea. The positioning performance with GPS/BDS RTK, GPS-only RTK, and BDS-only RTK is compared in terms of the positioning accuracy. An improvement of positioning accuracy over long baselines can be found with GPS/BDS RTK compared with that of GPS-only RTK and that of BDS-only RTK. The positioning accuracy of GPS/BDS RTK is better than 2 cm in the horizontal direction and better than 5 cm in the vertical direction. A lower Relative Dilution of Precision (RDOP) value with GPS/BDS integration can obtain a better positional precision for long baseline RTK positioning.
Keywords
GNSS; RTK; long baselines; integration;
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